BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 6SA
Summary Introduction
Introduction:
In a single population, variations in a single gene can be seen. These variations are caused because of presence of two or more alleles of the gene which is responsible for that trait. Even after presence of traits, similarities to some extent are maintained in different populations. Maintenance of similarities between populations can help in their interaction with each other if living in similar habitats..
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Dog breeders use selective breeding, also called artificial selection, to maintain a closed genetic lineage, and produce offspring with desirable traits. This violates which Hardy-Weinberg condition?
a
reproduction
b
no mutation
c
random mating
d
no natural selection
Black-footed ferrets are an endangered weasel found in the Great Plains. If fire swept through the plains and only a few members of a population survive (lowering the gene pool) , what did they experience?
a.Bottleneck Effect
B.Founder Effect
C.Mutation
D.Natural Selection
What factor results evolution of a species?
A) Genetic Drift
B) Gene Flow
C) Natural Selection
Chapter 17 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 17 - _________is the original source of new alleles. a....Ch. 17 - Prob. 2SACh. 17 - Match the modes of natural selection with their...Ch. 17 - Prob. 4SACh. 17 - The persistence of the sickle allele at high...Ch. 17 - Prob. 6SACh. 17 - Prob. 7SACh. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 9SACh. 17 - Prob. 10SA
Ch. 17 - Prob. 11SACh. 17 - Prob. 12SACh. 17 - In evolutionary trees, each node represents an...Ch. 17 - Match the evolutionary concepts. ____gene flow a....Ch. 17 - The evolution of wings helped the insect clade to...Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species of antelope, one from Africa, the...Ch. 17 - Prob. 4CT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and b
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____tends to keep populations of a species similar to one another. a. Genetic drift c. Mutation b. Gene flow d. Natural selection
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Which statement illustrates the connection between natural selection and overreproduction of a population?
a) populations vary in their inherited traits.
b) species produce more offspring than can survive in the environment.
c) individuals with inherited traits that promote survival tend to have more surviving offspring.
d) individuals with traits that do not enhance survival cannot reproduce.
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which of these is not a central rule of natural selection
a, fitness to the general health and strength of an organism
b, natural selection can only act on traits that affect reproduction
c, natural selection can't occur without population variation
d, a trait must be inherited if natural selection is to act on it
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The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called_____ . a. catastrophism c. natural selection b. evolution d. genetics
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Darwin based his Theory of Evolution by Natural Selection on series of observations. Which of the following is not associated with his theory?
a) individuals in a population vary phenotypically
b) organisms tend to under-reproduce themselves
c) there are limited resources for which individuals compete
d) some variations possessed by individuals of a population are inherited
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In which situation will populations experience gene flow?
A)hybridization between two populations of ground beetles
B)natural-selection pressures between two populations of dragonflies
C)mate competition between two populations of red-legged grasshoppers
D)intersecting migration routes between two populations of monarch butterflies
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How does genetic flow affect the recipient population?
A:Increases genetic variability
B:Exacerbates the effect of natural selection
C:Exacerbates the effect of genetic drift
D:Increases random mating
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A. Explain which force of evolution is seen here by a hybrid bird landing on an island that is not its home and breeding with the indigenous population.
B. Explain which force of evolution randomly chooses an individual from a larger gene pool to form a new, smaller population with less genetic variety.
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Evolution______ . a. is change in a line of descent b. is the same as natural selection c. is the goal of natural selection d. explains the origin of life
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Population genetics is the study of ________. a. how allele frequencies in a population change over time b. populations of cells in an individual c. the rate of population growth d. how genes affect embryological development
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Which scientific concept did Charles Darwin and Alfred Wallace independently discover? a. mutation b. natural selection c. overbreeding d. sexual reproduction
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